Card 1 Card 2 Liquid A - 1.4 g/ml; Liquid B -.82 g/ml; Liquid C - 1.0 g/ml; one liquid you know. What is it? Also how will they stack? Where will a 1.6 g/ml object end up? Find the density of a 5 milliliter, 25 gram object. Card 3 Card 4 A 30 milliliter rock is 15 grams. Find its density. Will a 0.59 g/ml piece of wood float in water? How about a 1.86 g/ml piece of clay? Card 5 Card 6 What is denser liquid silver or solid silver? A measure of how easily a solid can be pounded into thin sheets. Card 7 Card 8 A measurement of the compactness of a substance; ratio of mass to volume. Measure of a solid s ability to return to its original shape after stretching.
Card 2 Card 1 D=m/v; m=25g; v=5ml So D=25/5 = 5 g/ml Liquid C is water (1.0 g/ml). Liquid A will be on the bottom. Liquid B will be on the top. The object is the densest, so it will sink to the bottom. Card 4 Card 3 The wood will float because its density is less than water (1.0 g/ml); the clay is denser than the water and will sink. D=m/v; m=15g; v=30ml So D=15/30 = 0.5 g/ml Card 6 Card 5 malleability Solids are more compact, so they are more dense. Water is the only exception (solid water floats, ice). Card 8 Card 7 elasticity (a rubber band is more elastic than wood) density (a rock is more dense than foam)
Card 9 Card 10 A measure of how easily a solid will shatter. A measure of how easily a solid can be scratched. Card 11 Card 12 Upward force of a liquid or gas pushing upon something immersed in it. Any material that flows; either a gas or a liquid. Card 13 Card 14 Measure of a fluid s resistance to flow. (How thick a fluid is.) Measure of how hard it is to break something by pulling. Card 15 Card 16 Unit of density. Why do you seem to weigh less in water?
Card 10 Card 9 hardness (glass is harder than soap) brittleness (glass is more brittle than rubber) Card 12 Card 11 fluid (air is a fluid, so is oil or water) buoyancy Card 14 Card 13 tensile strength (steel has more tensile strength than a piece of paper). viscosity (honey is more viscous than water) Card 16 Card 15 Because the water is pushing up on you. This is the buoyancy force of water. g/ml OR g/cm 3
Card 17 Card 18 A 400 gram boat displaces 300 grams of water. Will it sink or float? A 125 gram object displaces 150 ml of water. Will it sink or float? Card 19 Card 20 A 300 gram boat displaces 400 ml of water. How much cargo can it carry and still float? What is more dense a steel boat or a block of steel? Card 21 Card 22 A hot air balloon has a mass of 6,000 kilograms. How much air will it need to displace to be able to float? If I put a balloon in the freezer what will happen? What gas law does this demonstrate? Card 23 Card 24 If I take air out of a tire what will happen to its pressure? Which gas law does this demonstrate? Give Charles' Law mathematically.
Card 18 Card 17 Float, because it displaces more than its mass in water (Archimedes Principle). Sink, because Archimedes Principle states that a 400 gram boat has to displace 400 grams of water to float. Card 20 Card 19 The block of steel. The steel is all the same density, but the boat seems less dense because of the shape. It is as if it has "air" in the middle. 100 grams of cargo. 400 ml of water gives enough buoyancy force to support 400 grams, but the boat is only 300 grams. So 100 grams of cargo will not cause the boat to sink. Card 22 Card 21 It will shrink. This is Boyle's Law. 6,000 kg. Air is a fluid just like water and so it follows Archimedes Principle. For an object to float in air it must displace its weight in air. Card 24 Card 23 V 1 /T 1 = V 2 /T 2 OR initial volume divided by initial temperature equals the final volume divided by the final temperature. It's pressure will decrease. This is Charle's Law.